Traction and power attachment.



H. I. COLLIER. TRACTION AND POWER ATTACHMENT.

APPLICATION FILED JULY 3. |916.

Patented July 16, 1918.

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TRAcTloN AND Powen ATTACHMENT.-

APPLICATION FILED IULY 3. |916.

1,273,035.- Patented .my 16, .1918.`

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@vi/1mm H. J. COLLIER.

TRACTION AND IOWER ATTACHMENT.

APPLICATION FILED IULY 3. I9I6.

Patented July 16, 1918.

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HARLEY J. conm-Ea, or nnsHLEn, orare..

simenon ND POWER A'r'rncnmEN'r.

To all 'whom t may concern.'

Be it known that I, HARLEY J. CoLLIER,-a citizen of the yUnited States, residing at I Deshler, in thefcounty of Henry ,and State of Ohio, have invented certain useful Improvements in Traction and Power Attachments, of which the followingv is a specication, reference being had therein to the accompanying drawing.

This invention relates to improvements in traction and powerattachments for mtor' cars, one object of the invention being the provision'of means adapted to be attached to the rear of a motor car to receive motion fromthe rear wheels thereof andy to transmitvrsuch motion either while the car is stationary or isin motion. f

lA further object of this inventionis the provision of va device 'of this Acharacter which 'is quickly attached to motor cars nowr in use, and which will permit sald .motor`car tooperate as atraction-engine or as a means for transmitting power to operatev machlnery, and more partlcularly machinery upon the farm,ras for instance,

. pumps, l s awingmachines, and the like.

the accompanying drawings;

Figure 1 is a top p an view of the complete attachment, dotted lines illustrating portions of 'a vmotor car chassis.-

Fig. 2 is a side elevation thereof. Fig. 3 isa side levation-taken from the ig. 4 is a bottomplan view thereof. l

Fig'. 5 is a' rear elevation. thereof.- Fi .6, 7 and 8A are detail views thereof. Referringnow, more particularly, to the accompanying drawings there Iis. provided a' main frame 10- embodying side sills v1J.

anda rear end sill 1l', the forwardfpor- `tions of the side sills being adjustably 00nnectedby the attaching -members 12- to the sidesl of thevchassis 14 of a motor vehicle. Connectedjto thespokesand rim 13 of the rearwheels ,14'l of a motor vehicle are-'spi'-l .ders T15 each ofwhich embody resilient at? tachingy and clamping arms 164 while carried byeach spider-lis a sprocket wheel'17;

Slidable-y onthe rear portion of the main frame by means of brackets 17 is a lrectangular frame 18 reinforced by Q braces 19. Journaledfin the sides of the :auxiliary frame adjacent theforward end thereof is a shaft liwhich .carries spaced sprocket `wheels 19 over which are trained chains' 20 which' are also trained about'the sprocket Specification o! Letters'l'atent.

j Patented July 16,1918.

e Apanemoameaiuiya,1916. Seriana. 107,371.

When the device is used as a tractor, "the sprocket chains' 20 are trained about the sprocket wheels 17 and about 'the large sprocket wheels 23'which are journaled in turn on the Arespective projectingends of the axle 24, the latter forming the rear end bar of the auxiliary frame 18 The sprocket wheels 23 are operably connected throughv mechanism 25 to the'tractor wheels 26 which are also journaled'on the respectiveends of the axle, the mechanism 25 act- -ing as differential gearing to permit of independent or differential movement of the tractor wheels on the axle 24. This mechanism 25 consists of an internal gear 27 on each wheel. 26 the teeth of which internal gear `are yieldinglyengaged by pivoted dogs 28 mountedon the adjacent sprocket Wheels 23 and yieldingly held in engagement with the teeth-of the internal gear through the instrumentality of springs 29.

r`As the tractor wheels are of greater diameter than the wheels of a motor vehicley the rear wheels will be supported above'and out ofcontact with the ground, either when the v tractor wheels are berig the shaft 18 is'opera The. tractor wheel carrying shaft is attached' for longitudinal `movement'. throughcthe adjusting screw 30 which is mounted in the rear sill -11 ofthe frame operated or when 4 means the, chains may be'. t'g tened after' i Jhaving been laced in position.

From the ore oing descrlption it is evi? dent that the obJectionable/feature of oon'- vertin automobiles into tractors isovercome, 1n that the rear wheels are held above the surface 'and the tires never engage the same, and when desired,the tires may be re- 'moved, as the rearfwheels are used merely as a means for transmitting motion to the tractor wheels. e

In attaching the present device to a mo tor vehicle the forward ends ofthe side sills 11 ofthe frame, after the vehicle has y been jacked npat the rear are attachedto' the front and rear axles ci2 the vehicle, the tractor wheels then acting as a support forv the jack isreleased and in vmaintaining the rear-'wheels of the vehicle from contact with `the ground. yThe sprocket chains can now be adjusted as an operating device for the tractor and as a power transmittingl device.

What I claim as new is:

1. The combination with a motor car, of/ an attachment 'therefor includingI a main frame, means for detachably connecting the forward end of the main frame to thesides of the chassislof the motorl car, sprocket iwheels, means for detachably connecting the sprocket wheels to the rear wheels of the motor car, an auxiliary frame slidable on the rear portion ofthe main frame, the rear end bar of which constitutes an axleand has its respective' 'terminals projecting-beyond the' sides of the main frame, tractor Wheels journaled on the respective. ends of the axle,

'sprocket wheels connected for independent forward portionsof th'e'iside sills to the sides .of the chassis of' ythe y"motor `car, spiders,

Qi'The combination with a motor car of an attachment .therefor comprising -a main frame embodying side sillsand a rear end sill, vmeans for detachably connecting the clamping arms on the ends lof the spiders for engagementl with the spokes of the rear wheelsof the mtorcar, sprocket wheels carried centrall of the spiders, an auxiliary frame slidab y mounted on the rearporton i of the main frame the f rear cross bar -of which constitutes an axle, the opposite ends c of the axle projecting beyondthezsides of the main frame, tractor wheels journaled on the projecting ends v of the axle, other I sprocket wheels `connected to the tractor wheels to permit of independent relative 'y movement of the tractor Wheels, a power transmitting shaft' journaled' through the auxiliary frame, sprocket chains trained abouty the first 'mentioned sprocket wheels and adapted tobe trained about the lastmentioned sprocket wheels and-operably connected to the power transmitting shaft, and :meansl carried by `the axle on the frame and adjust-ably connected Jto the rear endbar of the mainframe for'holding the auxiliary frame in various positions of adjustment.

l En testimony whereof I ax in ls' ature.

* HARLEY J. C. LLIER. 

